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Presence Sensor + Doorbell SIGMA-LKM3000B

Name: Presence Sensor + Doorbell SIGMA-LKM3000B
Brand: Generic / OEM

Brand: Generic / OEM • Audited BOM: 9 Components

Observed Retail See Benchmarks

China Factory FOB $ ••.•• 🔒 FOB

US Landed Margin ••% 🔒 Margin

BOM & Cost Breakdown (Reverse Engineering)

Bill of materials component teardown, factory FOB sourcing cost, and landed fulfillment markup.

Component / Part Name	Technical Specifications	Factory FOB (USD)
Passive Infrared (PIR) Sensor	Structural engineering grade part	$ ••.•• 🔒 FOB
🔒 +8 structural bill of materials components locked in Torfus Pro Unlock Full BOM